Home / 151,536.57-209,079.45-86,124.48

Finding the Fourth Proportional to 151,536.57, 209,079.45 and 86,124.48

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Solution

The fourth proportional to 151,536.57, 209,079.45 and 86,124.48 is: 118,828.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,536.57 : 209,079.45 = 86,124.48 : x
  2. Step 2: Convert to fraction form
    151,536.57/209,079.45 = 86,124.48/x
  3. Step 3: Cross multiply
    151,536.57x = 209,079.45 × 86,124.48
  4. Step 4: Simplify right side
    151,536.57x = 18,006,858,909.94
  5. Step 5: Solve for x
    x = 18,006,858,909.94/151,536.57
  6. Step 6: Final answer
    x = 118,828.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.